The Sisters Four.

Traci Holmes is plagued by recurring nightmares, the source of which lie hidden in repressed memories of her childhood. Her fiancée, Richard, is determined to find the hidden secret in her past which will free her from the nightmares. Along the way, he uncovers a terrible secret about the orphanage where Traci was raised, and a series of murders of former orphanage residents. Traci may be next.